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inna [77]
3 years ago
15

In a survey 4/12 of the students chose friday as their favorite day of the week and 5/12 chose saturday. What fraction of the st

udents surveyed chose friday or saturday?
Mathematics
1 answer:
Tcecarenko [31]3 years ago
4 0
9/12 chose Friday or Saturday. That reduces to 3/4. Which is also 75%. Hope that helps.
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Question 6<br> The point (-2, 1); is on the graph of which of these functions?
julsineya [31]

Answer:

Step-by-step explanation:

7 0
2 years ago
What’s the answer to x
grigory [225]

Answer:

x = 55

Step-by-step explanation:

a triangle's angles must equal when added up to 180.

so

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7 0
3 years ago
What numbers multiplie to equal -30 but add to equal -1
VashaNatasha [74]

Answer:

5 and -6.

Step-by-step explanation:

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3 years ago
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jolli1 [7]

Answer:

1x-2y

Step-by-step explanation:

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3 0
3 years ago
To measure the height of a tree, a surveyor walked a short distance from the tree and found the angle of elevation was 43.9°, th
padilas [110]

Answer:

The height of the tree is H = 77.06 m

Step-by-step explanation:

From Δ ABC

AB = height of the tree

\tan 43.9 = \frac{AB}{BC}

\tan 43.9 = \frac{h}{x}

h = 0.9623 x ------- (1)

From Δ ABD

\tan 37.6 = \frac{h}{20+ x}

h = 0.77 (x + 20) ----- (2)

Equating Equation  1 & 2 we get

0.9623 x =  0.77 (x + 20)

0.9623 x = 0.77 x + 15.4

x (0.1923) = 15.4

x = 80.08 m

Thus the height of the tree is given by

H = 0.9623 x

H = 0.9623 × 80.08

H = 77.06 m

Therefore the height of the tree is H = 77.06 m

4 0
3 years ago
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